Optical waveguide type optical coupling arrangement

Abstract

The invention relates to an optical waveguide type optical coupling arrangement. The present invention provides an optical waveguide type optical coupling arrangement for optically coupling the light emitted from a semiconductor laser bar to an optical fiber with high efficiency by a simple structure. The optical waveguide type optical coupling arrangement comprises: a semiconductor laser bar; an optical waveguide comprising a core part for guiding a light emitted from each of the light emitting elements in the semiconductor laser bar and a cladding part formed around the core part; and an optical fiber comprising a core and a cladding formed around the core for confining the light into the core, wherein the optical waveguide is bonded to a side surface of the optical fiber, and the light emitted from the laser bar is input to a side surface of the core of the optical fiber through the core part of the optical waveguide.

Description

technical field [0001] The invention relates to an optical waveguide type coupling mechanism for optically connecting a semiconductor laser bar and an optical fiber, in particular to an optical waveguide type coupling mechanism suitable for a fiber laser. Background technique [0002] The light-emitting part of a semiconductor laser is based on one light-emitting element. A laser bar with dozens of elements arranged in the horizontal direction is called a laser bar, and a laser bar arranged in the vertical direction is called a laser stack. [0003] As the laser bar, refer to the data sheet of the laser bar "BAC50c-9XX-03 / 04" of Bookham Corporation, explaining the structure of the laser bar (retrieved on March 1, 2007, Internet < URL http: / / www.bookham.com / datasheets / hpld / BAC50C-9xx-03.cfm>). [0004] Such as Figure 18 As shown, the laser bar 60 has a light-emitting element 61 with a thickness of 1 μm, a width of 100 μm, and a resonance length of 24 mm, such as Fi...

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Problems solved by technology

For example, if Figure 24 As shown in (b), when the laser light emitted by the light-emitting element 80 is incident on the optical fiber 86 from the side, one light-emitting element 80 needs one optical fiber 82 for sending, so the number of optical connections to the side of the optical fiber 86 increases, and the device changes. complex and huge

[0013] Additionally, in order to Figure 24 The optical coupling mechanism is applied to the laser bar, utilizing the Figure 24 The incident mechanism of the cylindrical lens 81 in (a) to the optical fiber 82 for transmission becomes complicated

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